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My fish's eye disappeared! What happened, and will it grow back?

Updated on September 23rd, 2025

One of ky fish's whole eyeballs just disappeared.so he have no eyes and going crazy over the tank.what could have done this?and does the eyes regenerate

2 Answers

Most Helpful Answer

Answered By Dr. Massimo Orioles, DVM, Cert AVP, MRCVS

Veterinarian

Published on March 11th, 2019

This could be caused an extreme exophthalmus that has rupture both eyes and could be secondary to an infection. Gas bubble disease can lead to eyes rupture as well.
Eyes unfortunately do not regenerate but can heal depending on the type of injury (a picture of the lesions would be extremely helpful in your case).
Begin by submitting a water sample for quality testing. Most pet stores will do this for free or a nominal fee. Clinical examination should always include a water quality check, even if you have done so already. Water testing should be performed with a quality test kit, measuring NH4, NO2 and NO3. High ammonia levels, PH imbalances may be responsible for these signs. Oxygen concentration and quality of the filters should be determined as well.
If water quality is normal, antibiotic treatment is likely to be required. Please discuss these options with your local vet.

1Pet Parents found this answer helpful

Related Answers from Veterinarians

Answered By Dr. Massimo Orioles, DVM, Cert AVP, MRCVS
Veterinarian
Published on December 23rd, 2018
Even though a better picture (i understand it is not easy at all!!) of it would help to determine the nature of this lesion more specifically and give you specific advices on how to give appropriate treatment, generally speaking you can follow these guidelines:

- set up quarantine tank: make sure the tank is well oxygenation and has some plants for hiding;
- add 1 teaspoon of aquarium salt per gallon;
- add this product https://www.liveaquaria.com/product/4410/?pcatid=4410 as indicated;
- leave your fish there and feed him regularly for 3-4 days until you don't see any improvement
- If no results at all are seen after 4 days a check up would be needed as more specific tests may be needed to establish a specific diagnosis.

Hope this answer was helpful, but please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further. Please find the time to give us a feedback about the consultation as that will be used to improve our service.
1Pet Parents found this answer helpful

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